【SSH小Demo】个人信息展示页面——XML配置方式（上）

本是古典何须时尚 2022-04-05 05:41 188阅读 0赞

最近没事，用Spring+Struts2+Hibernate做了一个小Demo，算是对知识做一个的巩固了解。下面将逐步记录从查询待编辑删除，增加，分页，以及搜索这些功能

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我们先创建好一张数据表，并向里面插入一定的数据，以便测试

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首先第一步创建好项目后，当然引入jar包

![20181211091617158.png][]            ![2018121109165125.png][]

然后创建一个包，在里面创建一个People.java以及它的映射文件People.hbm.xml

![20181211092938443.png][]

package com.zdxh.pojo;
    
    public class People {
    	private int id;
    	private String name;
    	private String sex;
    	private String phone;
    	private String address;
        
        /**setter and getter**/
    }

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE hibernate-mapping PUBLIC
            "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
            "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
     
    <hibernate-mapping package="com.zdxh.pojo">
        <class name="People" table="people">
            <id name="id" column="id">
                <generator class="native">
                </generator>
            </id>
            <property name="name" />
            <property name="sex" />
            <property name="address" />
            <property name="phone" />
        </class>
         
    </hibernate-mapping>

接下来就是开发DAO层，创建 com.zdxh.dao 包，在里面定义一个接口PeopleDAO，然后在创建一个com.zdxh.dao.impl包，在里面创建一个接口的实现类 PeopleDAOImpl

1.定义方法  list();

2.PeopleDAOImpl继承HibernateTemplate，HibernateTemplate里面自带sessionfactory的set方法，可以接受注入

![20181211093827745.png][]

package com.zdxh.dao;
    import java.util.List;
    import com.zdxh.pojo.People;
    
    public interface PeopleDAO {
    	List<People> list();
    }

package com.zdxh.dao.impl;
    
    import java.util.List;
    import org.springframework.orm.hibernate3.HibernateTemplate;
    import com.zdxh.dao.PeopleDAO;
    import com.zdxh.pojo.People;
    
    public class PeopleDAOImple extends HibernateTemplate implements PeopleDAO {
    	public List<People> list(){
    		return find("from People");
    	}
    }

在来开发service层

1.创建com.zdxh.service包，在里面定义接口PeopleService

2.创建com.zdxh.service.impl，在里面定义实现类PeopleServiceImple

![20181211094745946.png][]

package com.zdxh.service;
    import java.util.List;
    import com.zdxh.pojo.People;
    
    public interface PeopleService {
    	List<People> list();
    }

package com.zdxh.service.impl;
    
    import java.util.List;
    import com.zdxh.dao.PeopleDAO;
    import com.zdxh.pojo.People;
    import com.zdxh.service.PeopleService;
    
    public class PeopleServiceImpl implements PeopleService {
    	PeopleDAO peopleDAO;
    	
    	public List<People> list(){
    		return peopleDAO.list();
    	}
    
    	public PeopleDAO getPeopleDAO() {
    		return peopleDAO;
    	}
            //接受注入
    	public void setPeopleDAO(PeopleDAO peopleDAO) {
    		this.peopleDAO = peopleDAO;
    	}
    	
    	
    }

紧跟着就是就是写一个Action了，ProductAction提供对ProductService的注入，借助SSH的整合，ProductAction就充当非常单纯的控制层的角色：  
1. 创建com.zdxh.action包  
2. 在包内创建PeopleAction

![20181211100216976.png][]

package com.zdxh.action;
    
    import java.util.List;
    
    import com.zdxh.pojo.People;
    import com.zdxh.service.PeopleService;
    
    public class PeopleAction {
    	List<People> ps;
    	PeopleService peopleService;
    	
    	public String list(){
    		ps=peopleService.list();
    		return "listPeople";
    	}
    	
    	public List<People> getPs() {
    		return ps;
    	}
    	public void setPs(List<People> ps) {
    		this.ps = ps;
    	}
    	public PeopleService getPeopleService() {
    		return peopleService;
    	}
    	public void setPeopleService(PeopleService peopleService) {
    		this.peopleService = peopleService;
    	}
    	
    }

然后配置环境，在src目录下创建struts.xml

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">
     
    <struts>
      <constant name="struts.i18n.encoding" value="UTF-8"></constant>
       
      <constant name="struts.objectFactory" value="spring"/>
       
      <package name="basicstruts" extends="struts-default">
       
      <action name="*People" class="peopleActionBean" method="{1}">
        <result name="listPeople">WEB-INF/jsp/listPeople.jsp</result>
      </action>
       
      </package>
    </struts>

在WEB-INF里面创建applicationContext.xml，并且配置好连接数据库的相关信息

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns:aop="http://www.springframework.org/schema/aop"
        xmlns:tx="http://www.springframework.org/schema/tx"
        xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/context     
       http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
        <bean name="peopleActionBean" class="com.zdxh.action.PeopleAction">
            <property name="peopleService" ref="peopleServiceImpl" />
        </bean>
         
        <bean name="peopleServiceImpl" class="com.zdxh.service.impl.PeopleServiceImpl">
            <property name="peopleDAO" ref="peopleDAOImpl" />
        </bean>
        <bean name="peopleDAOImpl" class="com.zdxh.dao.impl.PeopleDAOImpl">
            <property name="sessionFactory" ref="sf" />
        </bean>
     
        <bean name="sf"
            class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
            <property name="dataSource" ref="ds" />
            <property name="mappingResources">
                <list>
                    <value>com/zdxh/pojo/People.hbm.xml</value>
                </list>
            </property>
      
            <property name="schemaUpdate"> 
                <value>true</value> 
            </property> 
                     
            <property name="hibernateProperties">
                <value>
                    hibernate.dialect=org.hibernate.dialect.MySQLDialect
                    hibernate.show_sql=true
                    hbm2ddl.auto=update
                </value>
            </property>
        </bean>   
             
        <bean name="ds"
            class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="com.mysql.jdbc.Driver" />
            <property name="url" value="jdbc:mysql://localhost:3306/ssh_demo?characterEncoding=UTF-8" />
            <property name="username" value="root" />
            <property name="password" value="admin" />
        </bean>      
    </beans>

同时，web.xml也要配置好struts2的拦截器和spring的监听器

<?xml version="1.0" encoding="UTF-8"?>
    <web-app>
        <filter>
            <filter-name>struts2</filter-name>
            <filter-class>
                org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
            </filter-class>
        </filter>
     
        <filter-mapping>
            <filter-name>struts2</filter-name>
            <dispatcher>FORWARD</dispatcher>
            <dispatcher>REQUEST</dispatcher>       
            <url-pattern>/*</url-pattern>
        </filter-mapping>
     
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
         
    </web-app>

在WEB-INF下创建一个jsp文件夹，文件夹里面创建listPeople.jsp，把传过来的数据打印出来

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然后启动tomcat测试一下 访问地址[http://localhost:8080/SSH\_Demo1A/listPeople][http_localhost_8080_SSH_Demo1A_listPeople]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTg2Njk2MA_size_16_color_FFFFFF_t_70 3][]

上面已经完成了普通的查询数据，下面我们来为这个Demo添加一些功能——增加信息和删除信息

1.在PeopleDAO的接口和实现类上新增add和delete方法，直接放实现类的代码

package com.zdxh.dao.impl;
    
    import java.util.List;
    import org.springframework.orm.hibernate3.HibernateTemplate;
    import com.zdxh.dao.PeopleDAO;
    import com.zdxh.pojo.People;
    
    public class PeopleDAOImpl extends HibernateTemplate implements PeopleDAO {
    	public List<People> list(){
    		return find("from People");
    	}
    	
    	public void add(People p){
    		save(p);
    	}
    	
    	public void delete(People p){
    		super.delete(p);
    	}
    }

2.给service层也增加add和delete方法

package com.zdxh.service.impl;
    
    import java.util.List;
    import com.zdxh.dao.PeopleDAO;
    import com.zdxh.pojo.People;
    import com.zdxh.service.PeopleService;
    
    public class PeopleServiceImpl implements PeopleService {
    	PeopleDAO peopleDAO;
    	
    	public List<People> list(){
    		return peopleDAO.list();
    	}
    	
    	public void add(People p){
    		peopleDAO.add(p);
    	}
    	
    	public void delete(People p){
    		peopleDAO.delete(p);
    	}
    
    	public PeopleDAO getPeopleDAO() {
    		return peopleDAO;
    	}
    
    	public void setPeopleDAO(PeopleDAO peopleDAO) {
    		this.peopleDAO = peopleDAO;
    	}
    	
    	
    }

3.action控制层新增了一个对象people用来接收增加功能传递过来的people值

package com.zdxh.action;
    
    import java.util.List;
    
    import com.zdxh.pojo.People;
    import com.zdxh.service.PeopleService;
    
    public class PeopleAction {
    	List<People> ps;
    	PeopleService peopleService;
    	People people;
    	
    	public String list(){
    		ps=peopleService.list();
    		return "listPeople";
    	}
    	
    	public String add(){
    		peopleService.add(people);
    		return "listPeopleAction";
    	}
    	
    	public String delete(){
    		peopleService.delete(people);
    		return "listPeopleAction";
    	}
    	
        /***setter and getter***/
    	
    }

并且需要在struts.xml里面配置跳转信息，新增<result name="listPeopleAction" type="redirect">listPeople</result>

<action name="*People" class="peopleActionBean" method="{1}">
        <result name="listPeople">WEB-INF/jsp/listPeople.jsp</result>
        <result name="listPeopleAction" type="redirect">listPeople</result>
      </action>

在jsp页面上也要做修改     1.增加删除的按钮    2.增加表单

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTg2Njk2MA_size_16_color_FFFFFF_t_70 4][]

![20181211112151205.png][]

再来测试一下，访问上面的地址：[http://localhost:8080/SSH\_Demo1A/listPeople][http_localhost_8080_SSH_Demo1A_listPeople]，在输入框内输入信息，点击提交

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTg2Njk2MA_size_16_color_FFFFFF_t_70 5][]

添加成功了

![20181211112438342.png][]

点击删除它，信息就没了

![20181211112508678.png][]

本篇介绍就到这里

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[20181211091617158.png]: https://img-blog.csdnimg.cn/20181211091617158.png
[2018121109165125.png]: /images/20220405/57bd7ad92c0943dfa500d7075e7aef26.png
[20181211092938443.png]: /images/20220405/5ec240ffa8c94dc98a226ce501015f7d.png
[20181211093827745.png]: /images/20220405/3c341df22c7546269ba11acf4836515e.png
[20181211094745946.png]: /images/20220405/768189ce328940f38bf844f84827e6d2.png
[20181211100216976.png]: /images/20220405/2a97dcbf9e6d40e592e7e2858f99c0f2.png
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[http_localhost_8080_SSH_Demo1A_listPeople]: http://localhost:8080/SSH_Demo1A/listPeople
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[20181211112151205.png]: /images/20220405/4685766b2ae34dc59a41676953c4e4fa.png
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[20181211112438342.png]: /images/20220405/69566587f7a94b4990059e81d3529714.png
[20181211112508678.png]: /images/20220405/8585644a661440abb0c06b6f88fff6f8.png